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Authors
Affiliations
1 College of Resources & Environmental Science, Xinjiang University/Key Laboratory of Oasis Ecology Xinjiang Uyhgur
Autonomous Region, Urumqi 830046, CN
Source
Nature Environment and Pollution Technology, Vol 14, No 1 (2015), Pagination: 53-57
Abstract
Dust pollution in Oasis cities located in arid areas affect resident's body, life and work in long term. The present study examined dust deposition on single leaves of Populus alba L. var. pyramidalis (Bunge) at various heights (1m, 2m, 4m), analysed dust particle size distribution and its contents in arid area city-Aksu, northwest China. The results showed that the amount of dust retained per leaf area of Populus alba L. var. pyramidalis (Bunge) differed significantly between sites, as follows: CAT>IA>P>RA>SFA; Leaves at a height of 1 meter retain the most dust compared with other two heights, as follows: 1m > 2m > 4m. Dust particles larger than PM10 account for more than 90% of all dust particles in all the sites and the dust accumulated on tree leaves is mainly of local urban origin. The variation of heavy metal concentrations in different sites is significant.
Keywords
Dust Retention Effect, Heavy Metals, Arid Area, Populus alba L. var. Pyramidalis (Bunge).
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